"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : MOT
Case Name   : 结合MOT表，函数相关DDL
Create At   : 2020/10/10
Owner       : opentestcase001
Description :
    1.设置enable_incremental_checkpoint参数为off,并重启数据库
    2.创建MOT表，创建函数，清理数据
    3.恢复环境默认配置，修改enable_incremental_checkpoint为on，并重启数据库
Expect      :
    1.设置成功，重启数据库成功
    2.创建内存表成功，函数创建成功，清理环境成功
    3.修改参数成功，重启数据库成功
History     :
    modified by opentestcase042,2023.01.05，优化MOT用例
"""

import os
import unittest
from testcase.utils.Logger import Logger
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant


class Mot_datatype_test(unittest.TestCase):

    def setUp(self):
        self.logger = Logger()
        self.primary_sh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.commonsh = CommonSH
        self.common = Common()
        self.config = 'enable_incremental_checkpoint'
        self.logger.info(f'-----{os.path.basename(__file__)} start-----')
        self.logger.info('------------修改配置，并重启数据库------------')
        show_msg = self.common.show_param(self.config)
        if 'off' not in show_msg:
            msg1 = self.primary_sh.execute_gsguc('set',
                                                 self.constant.GSGUC_SUCCESS_MSG,
                                                 f'{self.config}=off')
            self.logger.info(msg1)
            msg2 = self.primary_sh.restart_db_cluster()
            self.logger.info(msg2)
            msg3 = self.primary_sh.get_db_cluster_status()
            self.assertTrue("Normal" or "Degrade" in msg3)
        show_msg = self.common.show_param(self.config)
        self.assertTrue('off' in show_msg)

    def test_MOT_FUNCTION_DDL(self):
        text = '-----------------step:创建MOT表，创建函数，清理数据;expect:成功------------------'
        self.logger.info(text)
        self.t_name = 't_mot_0059'
        self.fun_name = 'fun_mot_0059'
        self.sql_cmd1 = f'''
                        drop foreign table if exists {self.t_name};
                        create foreign table {self.t_name}(id int,name varchar(10));
                        insert into {self.t_name} values(1),(2),(3),(4),(5);
                        '''
        self.sql_cmd2 = f'''
                        create or replace function {self.fun_name}(m int) return int
                        is 
                        m_1 int;
                        m_2 int;
                        begin
                            select max(id)+m into m_1 from {self.t_name};
                            select avg(id)-m into m_2 from {self.t_name};
                            return m_1*m_2;
                        end;
                        '''
        self.sql_cmd3 = f'''
                        select {self.fun_name}(10);
                        drop function {self.fun_name};
                        drop foreign table {self.t_name};
                        '''
        msg4 = self.primary_sh.execut_db_sql(self.sql_cmd1)
        msg5 = self.primary_sh.execut_db_sql(self.sql_cmd2)
        msg6 = self.primary_sh.execut_db_sql(self.sql_cmd3)
        self.logger.info(msg4)
        self.logger.info(msg5)
        self.logger.info(msg6)
        self.assertIn(self.constant.CREATE_FOREIGN_SUCCESS_MSG, msg4)
        self.assertIn(self.constant.CREATE_FUNCTION_SUCCESS_MSG, msg5)
        self.assertIn(self.constant.DROP_FUNCTION_SUCCESS_MSG, msg6)

    def tearDown(self):
        self.logger.info('------------this is tearDown-------------')
        self.logger.info('-----------恢复配置，enable_incremental_checkpoint=on-----------')
        show_msg = self.common.show_param(self.config)
        if 'on' not in show_msg:
            msg7 = self.primary_sh.execute_gsguc('set',
                                                 self.constant.GSGUC_SUCCESS_MSG,
                                                 f'{self.config}=on')
            self.logger.info(msg7)
            msg8 = self.primary_sh.restart_db_cluster()
            self.logger.info(msg8)
            msg9 = self.primary_sh.get_db_cluster_status()
            self.assertTrue("Normal" or "Degrade" in msg9)
        show_msg = self.common.show_param(self.config)
        self.assertTrue('on' in show_msg)
        self.logger.info(f'-----{os.path.basename(__file__)} end-----')
